Recording and reproduction of items of information using ROM-RAM storage media
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United States of America Patent
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Feb 3, 1998
Issued Date -
N/A
app pub date -
Nov 27, 1995
filing date -
Jun 23, 1992
priority date (Note) -
Expired
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Abstract
A magneto optical disc system includes a disc having permanently recorded tracks overlain with magneto optical recording material. Data is recorded in the magneto optical material in tracks superimposed over the permanently recorded tracks, using the read-only data to define magneto optical tracks. The magneto optically recorded data is correlated with the prerecorded data for defining the location of data stored in the magneto-optic tracks.
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